package com.atguigu.java;

import jdk.internal.org.objectweb.asm.ClassWriter;
import jdk.internal.org.objectweb.asm.Opcodes;

public class OOMTest extends ClassLoader{
    public static void main(String[] args) {
        int j = 0;
        try {

            OOMTest test = new OOMTest();
            for (int i = 0; i < 10000; i++) {
                //创建ClassWriter对象，用于生成类的二进制字节码
                ClassWriter classWriter = new ClassWriter(0);
                //指明版本号，修饰符，类名，包名，父类，接口
                classWriter.visit(Opcodes.V1_8,Opcodes.ACC_PUBLIC,"Class"+i,null,"java/lang/Object",null);
                //返回byte[]
                byte[] code = classWriter.toByteArray();
                //类的加载
                test.defineClass("Class"+i,code,0,code.length);//Class对象
                j++;

            }
        }finally {
            System.out.println(j);
        }
    }
}
